抗血清素化合物;an antiserotonin compound;多拉司琼 是一种抗血清素,用作止吐药,可防止化学疗法或全身麻醉引起的恶心和呕吐。多拉司琼 是SR-3A的抑制剂。;Dolasetron is an antiserotonin used as an antiemetic to prevent nausea and vomiting brought on by chemotherapy or general anaesthesia. Dolasetron is an inhibitor of SR-3A.